Tatsuya, the second son of three brothers, was always seen as a quiet, unassuming child by his mother, yumi. One spring, his older brother moved out for work, his younger brother went to a boarding school on a sports scholarship, and his father was transferred for work, leaving yumi and tatsuya to live alone. yumi felt a sense of loss as the once lively home became quiet. seeing his mother this way, tatsuya felt an inexplicable jealousy and tried to regain his mother's love, which he had never been able to monopolize.
